Environment bingo

Exercise and reference answers

Clues and terms

1. Clue

   Any agent causing an undesirable change in air, water or soil.

   Item

   Pollutant

2. Clue

   Removes gases like sulphur dioxide with a water or lime spray.

   Item

   Scrubber

3. Clue

   Measure of biodegradable organic matter in sewage.

   Item

   BOD

4. Clue

   Excess free-floating algae fed by nutrients.

   Item

   Algal bloom

5. Clue

   Natural aging of a lake by nutrient enrichment.

   Item

   Eutrophication

6. Clue

   Irreparable computers and electronic goods.

   Item

   E-waste

7. Clue

   Thinned ozone layer over Antarctica.

   Item

   Ozone hole

8. Clue

   Slash and burn farming of north-east India.

   Item

   Jhum

9. Clue

   1974 tree-hugging movement of the Garhwal Himalayas.

   Item

   Chipko

Instructions

Read each clue and tap the term it describes.

Explanation